摘要
在各种假设条件下,分析山东省1985~2004年粮食总产、单产及播种面积,根据动力学原理建立了若干粮食产量动力方程进行数值模拟和预测,提出若干解决方案,并分别给出不同方案下粮食产量的预测值。最后,提出相关建议,以期应对国家和地区未来的粮食安全问题。
Under various hypothetic conditions,the total output and yield of per unit of grain,and the area of cultivated land in Shandong Province from 1985 to 2004 were analyzed.And then,the dynamic prediction models of grain output were presented based on a variety of hypotheses and the dynamic models.Moreover,a few solutions and different forecast values were analyzed.Finally,some suggestions were put forward to deal with the future food problems of the region and country.
出处
《安徽农业科学》
CAS
北大核心
2007年第28期8773-8775,共3页
Journal of Anhui Agricultural Sciences
基金
国家自然基金项目(40371044)
国家"211"二期工程重大项目
关键词
粮食产量
动力模式
预测
山东省
Grain output
Dynamic model
Prediction
Shandong Province
